As explained in several other threads about this, the error log is not enough to understand the problem you are having and, your report is far too sparse to tell more (you said you reinstalled P3D, without saying which version ).
To get a complete log, you must enable logging in the Troubleshooting section of the GSX settings, and after the error comes, check this file:
%APPDATA%\Virtuali\Couatl.LOG ( not .ERR )
Zip the log and attach it to a post.